| 摘要 |
PROBLEM TO BE SOLVED: To provide a grooving tool for an integrated thin film solar board which suppresses a damage of a blade tip portion, thereby extending a service life, and facilitating grooving with reduced costs.SOLUTION: The grooving tool comprises: a rod-like body 81; a small-diameter columnar portion 83 formed at the distal end of the body 81; and a blade tip area 84 formed at the distal end of the columnar portion 83. The blade tip area 84 comprises: right and left planar side faces 85 parallel to each other; front and rear faces 87 inserted between the right and left side faces 85 and 85; and a planar bottom face 86 formed at the lower face of the columnar portion 83. Corners formed of the bottom face 86 and the front and rear faces 87 form blade tips 88, and a groove 89 is formed in the center of the bottom face 86. |
